From everything I've been able to learn re. the waiting period after PE for sex, I don't think you have any worries, chesz. I don't hesitate to use mine for any form of sexual activity after a couple of hours wait. Some might advocate waiting until the next day and I would like hearing from them about their reasonings re. this.
I'm going to "Thunder's Place" now to search for any information they give re. this. I think you're smart to be concerned.